In what scenarios would a document-store or XML database be more suitable than a relational database like MySQL for storing XML data?

Document-store or XML databases are more suitable than relational databases like MySQL for storing XML data when the data has a flexible or dynamic schema, contains nested or hierarchical structures, or requires frequent updates to individual elements within the XML document. In these scenarios, using a document-store or XML database allows for more efficient storage and retrieval of XML data without the need to map it to a relational schema. 

// Example PHP code snippet using MongoDB (a document-store database) to store XML data

// Connect to MongoDB server
$mongoClient = new MongoDB\Client("mongodb://localhost:27017");

// Select database and collection
$collection = $mongoClient->mydb->xml_data;

// Insert XML data into MongoDB collection
$xmlData = '<root><item><name>Item 1</name><price>10.99</price></item></root>';
$collection->insertOne(['xml_data' => $xmlData]);

// Retrieve XML data from MongoDB collection
$result = $collection->findOne();
$xmlData = $result['xml_data'];

echo $xmlData;

Keywords

document-store XML database relational database MySQL XML data

Related Questions